Weight 291 gramme including batteries. Truncates harmfull impulse sound and has good directional uptake of surrounding sound. Equipped with AUX inlet for connection to, e.g., communication radio or MP3 player, lead included. Operational time 350 hrs. Automatic switch-off after 4 hrs. Easily accessible battery unit which can be opened without tools. 2 alkaline batteries included. Moisture absorbing, comfortable hoop.
Complies with EN 352.
Attenuation in dB (electronics switched off):
|Mean attenuation (dB)||15,1||15,7||19,1||22,9||27,0||24,4||38,4||40,9|
|Standard deviation (dB)||4,5||3,0||3,1||2,9||2,3||3,3||3,0||3,4|
|Assumed protection (dB)||10,7||12,7||15,9||20,0||24,7||21,1||35,4||37,5|